(taken from: http://ocafs.oca.org/FeastSaintsViewer.asp?SID=4&ID=1&FSID=102002)
-Who is it?
(taken from: http://oodegr.com/english/biographies/newteroi/paisios1.htm)
Icon of St. Euphemia the Great-Martyr, dressed as a monastic (if I'm not mistaken, this is how she appeared to Elder Paisios) (taken from: http://voutsinasilias.blogspot.com/2009/07/11-2_06.html)
O Euphemia, Christ's comely virgin, thou didst fill the Orthodox with gladness and didst cover with shame all the heretics; for at the holy Fourth Council in Chalcedon, thou didst confirm what the Fathers decreed aright. O all-glorious Great Martyr, do thou entreat Christ God that His great mercy may be granted unto us.
You made fervent effort in your struggles of trial, in your struggles of faith for Christ your bridegroom. But even now, intercede with the Theotokos that the heresies and insolence of enemies be trod beneath the feet of our rulers, O All Praised, who received and kept the Decree of the 630 God-bearing Fathers.
Through the prayers of our Holy Fathers, Lord Jesus Christ our God, have mercy on us and save us! Amen!